This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is MBLJ40X30-20-S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the MBLJ40X30-20-S in place of this model. The MBLJ replacement upgrades to a riveted rolling-packed body and CMSG / DMSG / EMSG sensors (the MAL used CS1-M / DS1-M).
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X30-20-S
The AirTAC Airtac MALJ40 Adjustable Mini Cylinder MALJ40X30-20-S is a double-acting aluminum mini cylinder with a rear adjustable-stroke stopper: you can trim up to 20 mm, giving a usable end-position window from 10 to 30 mm. This model is discontinued — the drop-in replacement is the MBLJ40X30-20-S.
- BoreØ40 mm
- Stroke30 mm
- Adjust window10–30 mm
- Port sizeG1/4
- Rod threadM12×1.25
- StatusDiscontinued → MBLJ40X30-20-S
About the Airtac MALJ40 Adjustable Mini Cylinder MALJ40X30-20-S
The AirTAC MALJ40X30-20-S is a discontinued double-acting single-rod cylinder with a 40 mm bore, 30 mm stroke, and a 20 mm rear adjuster. This yields a usable end-position window of 10-30 mm. It delivers 628 N push and 528 N pull at 0.5 MPa. The exact drop-in replacement is the MBLJ40X30-20-S.
This unit features a fixed rubber bumper, not an adjustable cushion. The rear adjuster is a travel stop, not a lock, so it cannot hold a load without live air. The original threaded covers and CS1-M/DS1-M magnet switches are upgraded to a riveted body and CMSG/DMSG/EMSG sensors on the MBLJ.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X30-20-S Technical Specifications
| Model | Airtac MALJ40 Adjustable Mini Cylinder MALJ40X30-20-S |
|---|---|
| Series | MALJ adjustable-stroke mini cylinder (discontinued) |
| Replacement | MBLJ40X30-20-S |
| Bore size | Ø40 mm |
| Stroke | 30 mm |
| Adjustable window | 10 – 30 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | G1/4 |
| Rod thread | M12×1.25 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.1 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Fixed rubber bumper |
| Max standard stroke | Up to 500 mm |
The rear adjuster is a travel stop, not a lock — it sets the end position but does not hold the load without live air. No back-cover code and no SDB on adjustable-stroke. The MBLJ40X30-20-S carries the same ratings.
Theoretical Output Force (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
Single-rod force, same as a standard MAL of this bore. The MBLJ40X30-20-S matches these values.
Model Code: Airtac MALJ40 Adjustable Mini Cylinder MALJ40X30-20-S
| MALJ | Adjustable-stroke aluminum mini cylinder, double acting (discontinued). |
|---|---|
| 40 | Bore size in mm (20/25/32/40). |
| ×30 | Nominal stroke length in mm. |
| -20 | Adjustable amount: trim the end to a 10–30 mm window. |
| S | Optional magnet for a CS1-M / DS1-M sensor (MBLJ uses CMSG/DMSG/EMSG). |
Replacement: MALJ → MBLJ. No back-cover (CA/U/CM) and no SDB. Mounting: FA / LB.
Where the Airtac MALJ40 Adjustable Mini Cylinder MALJ40X30-20-S Is Used
Printed Circuit Board Tester
Dial the exact 10-30 mm reach for spring-loaded test pins. The 628 N push force firmly seats the tester against varying PCB thicknesses without over-stressing the board.
Dispensing Valve Depth Stop
Set a precise dispense height for adhesive nozzles. The 20 mm rear adjuster lets you fine-tune the 30 mm stroke on the fly for different syringe tip lengths without adding external stops.
Wire Harness Crimper
Crimp small terminals with the 528 N pull force. The rear stopper allows micro-adjustments of the crimp depth to prevent terminal deformation across mixed wire gauges.
Replacing the Airtac MALJ40 Adjustable Mini Cylinder MALJ40X30-20-S with MBLJ40X30-20-S
To replace this MALJ40X30-20-S, order the MBLJ40X30-20-S drop-in. Confirm the 40 mm bore, 30 mm stroke, 20 mm adjust code, G1/4 port, PT thread, and FA/LB mounting (no back cover or SDB). The -S magnet changes from CS1-M/DS1-M to CMSG/DMSG/EMSG. If sizing down, the 32 mm bore gives 402 N push at 0.5 MPa; if sizing up, the 40 mm is the largest available here at 628 N. The adjuster sets end position but does not hold load without air.
Upgrade checklist
- ✓ Order the MBLJ40X30-20-S (same bore/stroke/adjust)
- ✓ Same 10–30 mm adjustable window
- ✓ Adjuster is a stop, not a lock
- ✓ No back cover / SDB — plan an FA/LB mount
- ✓ Sensor: swap CS1-M/DS1-M → CMSG/DMSG/EMSG
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.1 – 1.0 MPa operating pressure.
- check The rear adjuster sets the end position — it is not a load lock.
- check No back-cover / SDB on adjustable-stroke — use FA / LB.
- check Front/rear covers are threaded — not for field disassembly.
- check For new builds, specify the MBLJ40X30-20-S instead of this discontinued model.
Airtac MALJ40 Adjustable Mini Cylinder MALJ40X30-20-S FAQ
Yes, the MALJ40X30-20-S is discontinued. The exact drop-in replacement is the MBLJ40X30-20-S, which matches the 40 mm bore, 30 mm stroke, 20 mm adjust code, G1/4 port, and FA/LB mounting. The MBLJ upgrades the body to a riveted rolling-packed design and the -S magnet switches from CS1-M/DS1-M to CMSG/DMSG/EMSG.
The usable end-position window is 10-30 mm (30 mm stroke minus the 20 mm adjuster). The force figures are: 628 N push at 0.5 MPa, 528 N pull at 0.5 MPa, 880 N push at 0.7 MPa, and a maximum of 128 kgf at 1.0 MPa. The adjuster is a travel stop, not a lock, and cannot hold a load without live air.
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Drop-in Upgrade
The MBLJ40X30-20-S replaces this model 1:1.
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MBLJ replacements usually ship in 3-4 days.
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Most inquiries answered within 7-8 hours.
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